Safety-stop for wire-drawing blocks.



L. J. ALTENHOF.

SAFETY STOP FOR WIRE DRAWING BLOOKSJ APPLIOATION FILED SEPT. 20, 1910. 1,048,268 7 Patented Dec.24,1-912.

4 SHEETS-SHBET i.

WBT'NESSES N T-QR L. J. ALTENHOF.

SAFETY STOP FOR WIRE DRAWING BLOCKS.

APPLIOATION FILED SEPT. 29, 1910.

1,048,268. Patented Dec.24,1912.

L. J. ALTENHOF.

SAFETY STOP FOR WIRE DRAWING BLOCKS.

APPLICATION FILED SBPT.29, 1910.

Patented Dec. 24, 1912.

III/In f INVENTOR wzw NESSES L. J. ALTENHOF.

SAFETY STOP FOR WIRE DRAWING BLOCKS.'

APPLICATION FILED SEPT. 29, 1910.

1,048,268. I Patented Dec.24, 1912.

4 SHEETS-SHEBT 4.

f INVENTOR w .140111% J, ALTENHOI, Oil? IlfilIOfR-A, I ENKISYLTIAIWTA, ASSIGNOR TO THE AMERICAN 6c WIRE CUMEANY HPORATHIOI-l i NEW] JEIMHY.

Specification 0L 'Leti'zers Patent.

JJBUXVIING IBLOCKS.

' 'llaironiml lien. 24;, ii will fail implication 11ml Septcmbor 229, 1910. Serial No. 58 L519.

" QI'I'WYIOWL '1' t may concern:

Lil; known that I, LOUIS J. Amtnumi, i, in the county of Washington and Pennsylvania, have invenled a new lly stopping; oileinlnnl,

or 1711 mi :lo'tnm. the clutch to *icuuh the OI din-m from ''ho drum driving-3 on main should iho f Lilnnt be caught 0'3 Whon snarling UL 'l-ziuiiing oil the foil. Wine hoooonirs,

A still nwilhor ob' oo'i oi 'ilillS lnvo'o'lion 18 to piovioo in :unprovod clutch doinchmg; mechanism having frictional means for disnngngmg clinch 'jJLW and honoring the dim-vin hlool'; or drum lo 21 smoclohlh ho'roi'm'og to ion drawings, l lg- 11m 1 1s a Sfifili-lOhihl and elevation of ii WHL drawing" honoh ha ing a Wire drawing block or drum, {shown partly in 58(71'1011) nnii drum drivmg mechanism consi'iuolorl and :ii'mngmi in.

1' (Elm uccorslonce with my invention Fig, is n 'BCUOIml end olomhon of no "mire cliowinn' l ie'nch lmvinn a moclilioitl form of clutch i.

nanny mochnnu-un also constmctoii o1 winged in {lCfZl'llLlllllCQ Will! my Fig. 3 1S SBClil'Ollill plan show In the drum liftlin motions how o the lrnni'lio or foot level or inninmliy r 1 the rolalion of the drum,

ing block or (lllllll which in the construction shown is loosely mouniod upon :1 voriicnl driving spindlo 3. The spinrllo is mounted in a stop hearing .l and its upper ("lid rotniohly scoured in lho homing :3, this; spin (116 being driven through the bovol gear 6 which meshes with n hovel pinion 7 on tho jack shaft 8. Tho jack shaft 8, which is urranged to drive a series of the (lrmm 2, is: mounted in suitable hearings b .1l(.'1:ll-ll'fillfl extends; longthwir-re of the wiro' rl owing bench 9 which soi'turmfl upon mini suppoil ml by tho slunilnicls: il 'liio whirling: (ii-uni is; PX'U'lLlCCl upon hoiiom l'nco will: ilmvim'ohilly extomlii f? projwliom Ol lugs; ill which lll'i) l no-ed hz'ii'ilonvil inserts: o? whoring Q'ti'ips 1i Snowing one 513i the jaws of the llriv' migf Clui'vh hy moons of whir-h the (lllllh'l is positively i'oiniod. Also semi-Ml on ii vorii olly ox'i'omling spindle 3 so us to he lOiZfli-Qil thoiowii h is a disk ()i hinge 12 having" upwardly oxh mling logo or projections 13 similarly consl'i'ucteil to those on the hottom face of the drum 2, the lugs also being inoed. with hardened inserts-s or wearing rips iii. which are arrranged to contnm'z with the strips 11 on tho drum in rotating the drum. in he con s'ti'uci-ion shown, tho disk 12 is keyed or otherwise secured to the spindle 3 S( :25; lo ho rotated by this spindle.

Pivoi'oil to tho fimuoworli of the Li owing bench 9 is a yoked love,- 153 having; in; forked omils connooiod to vertically exteni'ling IOllS or bars 16, the oppor (min of which eon agowith the bottom surface of he lllllm 2 in lifting the drum to rlimngugo the clutch jaws ll and 14; forming the clutch, and hold the drum stationary against? rotutiini. Ply oted by one and lo u bl'ookoli or :Lllfi l? on the drawing bench 9 is :1 fooh level or fi'ourllo 18 which is connected {it an inlcrinmlinie point in its length by n link to onu end of the pivotoifl yoke lover l5. Tho outer owl oi the yoke l5 provided with a 001mm weight 20 which serves to lower the oouniou avoig hlu onil of tho yoke 15 11ml, through tho ng' inoi'rhuilism, lift the forward and lover i8. 'fho end of the. lover:

" iii lilo; drawing bench 9 in d by lhe fool; of the it desired to hring the llhe fool, lover 18 projects 'iil having n wide portion 22 at its lower end and-aspring 23 is'secured to the foot lever 18 so as to exert a force tending to pull the lever 18 sidewise when opposite the wide portion 22 of the slot.

In the operation of drawing wire the coils being drawn frequently become snarled or kinked and, unless the drum is quickly disengaged from the driving mechanism and stopped, the wire or rods will break, or serious damage to the apparatus may occur while the drawing operationsaare delayed. It mayv also happen that the workman attending to the machine may be caught by the wireand injured unless the machine is quickly stopped. I It is desired to prevent inv jury to'workinen and delays and breakage of the wire or rods or damage to the apparatus, and for this purpose I have provided a safety stop mechanism in which one end of the lever 24 is pivoted at 24 in a suitable location, to the floor 25.

The upper end of the lever 24 is provided with a recess or openinggtl through which the wire or rod being rawn passes on its way from the coil to the'winding drum 2.- @116 end of a flexible connection 27 1s sesecured to the lever 24, this connection passing around the idler sheave wheels 28 and 29 and around the jack shaft 8 by which the drawing blocks or drums are rotated. The

I other end of the flexible connection 27 is Qnt secured by means oila link to the foot lever-e18 for a purpose described later. Preferably the connection 27 is provided with :3; a flexible fiat portion 27. which contacts with the jack shaft 8, although when desired, a sheave wheel 8 may be provided on the jack shaft, as shown in Fig. 2.

In the construction shown in Fig. 2 the flexible connection 27 is led upwardly above the winding drum, and, passing over the sheave wheels 28 29 is then led downwardly and around the sheave wheel 8 which is ,ke'yed or otherwise secured to the jack shaft for that purpose, its other end being secured to the foot lever 18, as before described.

in the operation of drawing wire by means of my improved apparatus the foot lever 18 is placed in the position shown in the drawing, when-the clutch jaws will be in engagement and the drum 2 positively rotated through the spindle 3- and connecting gearing bythe jack shaft 8, The end of the wire or rod to be drawn is passed through'the opening 26 in the pivoted levers 2% or 24. and theend of the rod or wire,

t after having been pointed in theusual manner, is inserted in one of the openings in the die block. B and is then caused to be gripped by the jaws 30, 31 of the rod grip ping mechanism shown in Figs. 5 and 6. The wire is then pulled through the die block and reduced in the usual manner by the rotation of the 2. g

eas es I 7 Should, as is frequently the case, a snarl or kinkoccur in thelength of the wire being drawn, when such kink-reaches the pivoted lever24c or 24 the snarl or tangle willnot pass through the relatively or slot '26 this arm 24 and the pulling action of-the drum 2 upon the wire A will' gagement of the jack shaft with the flexible,

small opening connection causes the lever 24: to depress the outer or free end of thefoot lever 18 and through the connecting mechanism moves the yoke 15 so as to lift thedrum '2 on its spindle 3 a rdistance suficientto disengage the clutch jaws 11 and 14. Should the attendant be caught'by the wire and,

pulled by it against the lever 24:, the same action will, of course, take place as in the case of a snarl or kink, and thus the workman is protected from possible serious or fatal injury, This operation being performed mechanically is entirely automatic and takes place much more quickly than it could be performed by manually disengaging the clutch through the foot lever 18. The vtoot. lever 18 then enters and engages with the offset formed by the widenedportion of the slot 22 so as to hold the lever 18 in its depressed position and maintain the drum in its disengaged position, the lever being moved sidewise by the spring 23 or by the operator. The snarl or kink'or other obstruction is then removed and the foot lever is released and is permitted to lift through the action of the counter-weight :20 so as to again bring the clutch .jaws on the drum into engagement, start the drum in rotation and cause the wire drawing operation tobe continued.

l/Vhen for any reason it is desired to stop the operation of thegdrum, the operator will tread upon the outer end of the lever or treadle l8 and cause it to engage with the stop formed by the widened portion of the slot 22, where it will remain until-such time as released by the operator.

Insome cases the wire on the drum breaks causing the end tov fly-about as the drum revolves, and in going to the foot lever to stop the drum the operator is liable to be struckby the flying end, causing injury to his eyes or vother part of his body with whichit comes in contact. With my improved apparatus the operator can grasp the lever 24 and shut off the power at a safe distance. 3 v v v With the overhead construction shown in *Fig. '2, if the operator should be caught and "carried around the block, his body striking the-flexible connection 2:! will tighten-the friction mechanism, shutting down the drum,v

automatically, thus preventing injuries which might result, should the drum be not,

or whcn the workman is caught by the Wire.

The clutch operating mechanism frictionally engages with the constantly rotating jack shaft and in this way utilizes power imparted by this jack shaft to disengage the drum from the driving mechanism. The apparatus 1s simple and is easily kept in repair.

Modifications in the construction and arrangement ot' the parts may be made without departing from my invention as set forth in the appended claims.

I claim 1. A wire drawing bench having a winding drum, a drum spindle, means detachablv connecting the drum and spindle. a jack shaft for driving the spindle detaching mechanism, engaging with said jack shaft in disconnecting the detachable means connecting the drum and spindle and means operatively connected with the wire or rod being drawn arranged to hold the detaching mechanism in frictional engagement with the shaft and jaws when actuated by said wire or rod.

2. A wire drawing bench having a wind ing drum, a drum spindle, said spindle having co-acting jaw members "forming' a clutch detachably connecting the drum amlspindle, a. pivoted lever arm operatively engaged by said rod or wire, said arm having an opening therein through which the rod or wire is passed and connections between the drum and pivoted lever arm arranged to disengage the clutch jaws when the arm is moved by said wire or rod.

3. A wire drawing bench having a winding drum, a drum driving spindle, co-acting jaw members on said drum and spindle forming a clutch detachably connecting the drum and spindle, a jack shaft for driving the spindle, frictional clutch disengaging mechanism engaging with the jack sha't't disengage the clutch d rum and and arranged to lift the drum to disengage the clutch jaws, a pivoted lever operatively connected to the rod or wire being drawn and arranged to be actuated by an obstruction in said wire or rod. and connections between the lever and clutch disengaging mechanism arranged to hold the clutch disengaging mechanism in frictional engagement with the jack shaft in disengaging the clutch jaws and holding the drum in litted position.

4;. A wire drawing bench having a winding drum. drum drivingmeehanism therefor, said drum and drum driving mechanism having co-acting jaw members co-acting to form a clutch, a clutch detaching mechanism, a pivoted arm operatively engaged by the wire being drawn. and connections between said arm and clutch detaching meehanism for holding said connections in operative engagement with the drum driving mechanism when the pivoted arm is moved by the wire being drawn to detach said drum and drmn driving mechanism.

5. The C(H'llblllitliOXt with a wire winding drum of a spindle said spindle and drum having jaws thereon co-acting to form a clutch mechanism connecting the drum and spindle. means for operating the spindle. means tordisengaging the clutch jaws and means UPtltlllVOl) engaged by the wire or rod being drawn for antonmtically operating said c lnteh mechanism to detach the clutch and release the drum from the spindle.

(3. The combination drum of a spindle, jaw members on drum and spindle forming a clutch mechanism detachably connecting the drum and spindle, means for rotating the spindle and movable means operatively connected to and actuated by the wire or rod being drawn for automatically operating said clutch mechanism to disengage the clutch jaws and release the drmn from the spindle.

In testimony whereof, I have hereunto set my hand.

with a wire winding LOUl'S J. AL'lENHtHQ Witnesses: I

D. S. Bnren, H. A. SCHULTZ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

